fid-umd/bin/fid-umd.js

Easily add UMD to your JavaScripts so they can be loaded with CommonJS, AMD (RequireJS), Rhino, node.js, module.js, in the browser and everywhere else.

#!/usr/bin/env node

"use strict";

var FidUmd, filenames, fs, OptionParser, options, parser;

FidUmd = require("../lib/fid-umd");
fs = require("fs");
OptionParser = require("option-parser");
parser = new OptionParser();
options = {
    statusCode: 0,
    stdinRead: false
};

parser.addOption("h", "help", "Display this help message").action(function () {
    console.log("Update or add UMD to JavaScript files");
    console.log("");
    console.log("Usage:");
    console.log("\t" + parser.programName() + " [options] filename [filename [...]]");
    console.log("");
    console.log("Available Options:");
    console.log(parser.help());
    console.log("");
    console.log("If there are any files that have invalid JSON in their \"fid-umd\" markers,");
    console.log("they will not be updated and this program will have a failure status code.");

    /* eslint no-process-exit:off */
    process.exit(0);
});


/**
 * Retrieves a file's contents.  Sync.
 *
 * @param {string} filename
 * @return {string} contents
 */
function getFileContents(filename) {
    if (filename !== "-") {
        /* eslint no-sync:off */
        return fs.readFileSync(filename, "utf8").toString();
    }

    if (options.stdinRead) {
        throw new Error("Aready read from stdin");
    }

    if (fs.existsSync("/dev/stdin")) {
        return fs.readFileSync("/dev/stdin", "utf8").toString();
    }

    throw new Error("/dev/stdin does not exist and must read from stream synchronously");
}


/**
 * Updates a file with new UMD wrapper
 *
 * @param {string} filename
 */
function updateFile(filename) {
    var contents, umd;

    try {
        umd = new FidUmd();
        contents = getFileContents(filename);
        contents = umd.update(contents);

        if (filename === "-") {
            process.stdout.write(contents);
        } else {
            fs.writeFileSync(filename, contents);
        }
    } catch (ex) {
        console.log("Unable to update " + filename);
        console.log(ex.toString());
        console.log(ex.stack);
        options.statusCode = 1;
    }
}


filenames = parser.parse();
filenames.forEach(updateFile);

if (filenames.length === 0) {
    console.error("Please pass filenames on the command line");
    console.error("For a list of options, use --help");
}

process.exit(options.statusCode);